Pontiac - Race The next Level

          
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Old 09-04-2024, 09:09 AM
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Question Kre d port head

How does the oil return from the standard d port KRE heads? Is it just through the hole towards the back of the head?

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69 Firebird
472, Bullet SFT, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 11.14@120
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Old 09-04-2024, 09:10 AM
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Is this why you think your oil usage / smoking issue is starting from?

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Old 09-04-2024, 10:56 AM
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Just trying to understand the path of the pil back to the pan. The poured lifter brace probably isn't helping. Wondering if it needs modifying

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69 Firebird
472, Bullet SFT, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 11.14@120
  #4  
Old 09-11-2024, 02:01 PM
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I believe the oil goes down through the head from the valve cover area into the valley pan area, then toward the oil pan.

The poured lifter brace probably isn't helping. Wondering if it needs modifying As been previously discuss on another thread. Sorry but I don't think that poured lifter brace is helping you any. The oil is not draining back to the oil pan fast enough in my opinion. .

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68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 9.95@134 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
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Old 09-11-2024, 02:28 PM
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If you want to end your oil smoke issue install a vacupan set up into your headers.

I had My cousin’s son do this due to the same issue as your motor and it’s cured!

The crankcase pressure due purely to your motors long stroke needs you be released.

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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
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